Frequencies Channels ATC and Rules
1. Today we have 160 frequencies per MegaHerz compared to 10, some thirty years ago.
And consequently they contain much more digits to spell and dial. When those are combined with your call sign, plus some odd heading and flight level, here we come to common human brain saturation,
regardless if it is your mother language or not.
So when those are already labelled "Channels", why saturate the RT with their beginning number "1" and ending number of "0" ?
Can anybody in this world select frequency without number "1" in the beginning ?
I give a credit to ATC for not calling last digit of a frequency ***,025 ***,050 and ***,075
because it is impossible to select any other number as a last digit.
but there is still long way to go with 50% of all frequencies (Channels),
being added their last digit of "0" by ATC in RT.
2. Any Student Pilot from America to Zambia, can count 160 channels per MegaHerz on a modern radio, compared to 40 per MegaHerz on Old generation Radio of few years ago.
So why
(excuse me if I am wrong here)
this New Generation Radio (Channels),
are still officially referred as a Frequencies with "Spacing of 8.33 KHz" ?!?!
Again, any of those students (including myself) can divide 1 MHz with 8.33 KHz and get ONLY 120 Channels !!!
But if we divide 1 MHz with ACTUAL 160 Channels,
here we come to (correct figure of) 6.25 KHz spacing , and NOT 8.33!!